Abstract: Disclosed herein are a thin printed circuit board, in which a pair of high-functional resin substrates having a permittivity ranging from 1.5 to 4.0, on one surface of each of which a circuit pattern is formed through ion-beam surface treatment, vapor deposition and electroplating, are layered with an insulating layer interposed therebetween, and a method of manufacturing the printed circuit board. The circuit patterns are positioned inside the substrates. Thereafter, external layers are formed through ion-beam surface treatment, vapor deposition and electroplating. According to the present invention, the adhesiveness between each of the substrates and a metal layer may be improved through the ion-beam surface treatment/vapor deposition.

Abstract: Disclosed herein are a printed circuit board and a fabrication method thereof, which can improve electrical properties, shorten processing time, and reduce the thickness of a chip package by achieving an ultra-thin fine circuit pattern. The printed circuit board includes an insulating material; a via-hole formed in a given location of the insulating material; a copper seed layer formed through ion beam surface treatment and vacuum deposition on the surface of the insulating material having the via-hole formed therein; and a copper pattern plating layer formed on a given region of the insulating material, which has the copper seed layer formed thereon, and in the via-hole.

Abstract: Through holes for flow paths of the fuel cell are formed in a thermoplastic polymer film by a process selected from a group consisting of laser drilling, etching and lithography, an inner side surface of the thermoplastic polymer film is coated with a metal layer, and the through holes are filled with a fuel diffusion material and a catalyst to provide an anode. The procedure is repeated to provide a cathode. Then, the anode and the cathode are placed to oppose each other. A cation conducting polymer membrane is disposed, between the anode and the cathode, and the anode, the cation conducting polymer membrane and the cathode are hot-pressed.